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From "gu-chi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3536) ZK exception occur when updating AppAttempt status, then NPE thrown when RM do recover
Date Fri, 24 Apr 2015 01:35:38 GMT

    [ https://issues.apache.org/jira/browse/YARN-3536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14510320#comment-14510320
] 

gu-chi commented on YARN-3536:
------------------------------

Thx, as the exception trace stack is almost, I once looked into this ticket. This patch is
already merged into the current environment I use.
Not same cause.

> ZK exception occur when updating AppAttempt status, then NPE thrown when RM do recover
> --------------------------------------------------------------------------------------
>
>                 Key: YARN-3536
>                 URL: https://issues.apache.org/jira/browse/YARN-3536
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacityscheduler, resourcemanager
>    Affects Versions: 2.4.1
>            Reporter: gu-chi
>
> Here is a scenario that Application status is FAILED/FINISHED but AppAttempt status is
null, this cause NPE when doing recover with yarn.resourcemanager.work-preserving-recovery.enabled
set to true, RM should handle recovery gracefully



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